1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
|
/*
* Copyright (C) 2007, 2013 Apple Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of Apple Inc. ("Apple") nor the names of
* its contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef SQLTransaction_h
#define SQLTransaction_h
#include "EventTarget.h"
#include "SQLCallbackWrapper.h"
#include "SQLTransactionStateMachine.h"
#include <wtf/PassRefPtr.h>
#include <wtf/Ref.h>
#include <wtf/RefPtr.h>
namespace WebCore {
class Database;
class SQLError;
class SQLStatementCallback;
class SQLStatementErrorCallback;
class SQLTransactionBackend;
class SQLTransactionCallback;
class SQLTransactionErrorCallback;
class SQLValue;
class VoidCallback;
class SQLTransaction : public ThreadSafeRefCounted<SQLTransaction>, public SQLTransactionStateMachine<SQLTransaction> {
public:
static Ref<SQLTransaction> create(Ref<Database>&&, RefPtr<SQLTransactionCallback>&&, RefPtr<VoidCallback>&& successCallback, RefPtr<SQLTransactionErrorCallback>&&, bool readOnly);
~SQLTransaction();
void performPendingCallback();
void executeSQL(const String& sqlStatement, const Vector<SQLValue>& arguments, RefPtr<SQLStatementCallback>&&, RefPtr<SQLStatementErrorCallback>&&, ExceptionCode&);
Database& database() { return m_database; }
// APIs called from the backend published via SQLTransaction:
void requestTransitToState(SQLTransactionState);
bool hasCallback() const;
bool hasSuccessCallback() const;
bool hasErrorCallback() const;
void setBackend(SQLTransactionBackend*);
private:
SQLTransaction(Ref<Database>&&, RefPtr<SQLTransactionCallback>&&, RefPtr<VoidCallback>&& successCallback, RefPtr<SQLTransactionErrorCallback>&&, bool readOnly);
void clearCallbackWrappers();
// State Machine functions:
virtual StateFunction stateFunctionFor(SQLTransactionState) override;
void computeNextStateAndCleanupIfNeeded();
// State functions:
void deliverTransactionCallback();
void deliverTransactionErrorCallback();
void deliverStatementCallback();
void deliverQuotaIncreaseCallback();
void deliverSuccessCallback();
NO_RETURN_DUE_TO_ASSERT void unreachableState();
Ref<Database> m_database;
RefPtr<SQLTransactionBackend> m_backend;
SQLCallbackWrapper<SQLTransactionCallback> m_callbackWrapper;
SQLCallbackWrapper<VoidCallback> m_successCallbackWrapper;
SQLCallbackWrapper<SQLTransactionErrorCallback> m_errorCallbackWrapper;
bool m_executeSqlAllowed;
RefPtr<SQLError> m_transactionError;
bool m_readOnly;
};
} // namespace WebCore
#endif // SQLTransaction_h
|
